VAG-COM Frequently Asked Questions -- Page 2

2.1  How do I Register/Activate my software?

All of our Current Interfaces have Activation built-in, so VAG-COM should always be Fully Activated once it has been tested on a car.

If you have an older Interface without built-in Activation, or have purchased an Interface somewhere other than Ross-Tech,  click here for Activation instructions

2.2  What's the difference between the Shareware version and the fully registered version?

All of our Current Interfaces  have Activation built-in, so VAG-COM will always be Fully Registered/Activated. If you have an older Interface without built-in Activation, or have purchased an Interface somewhere other than Ross-Tech, VAG-COM will operate in Shareware mode until it is Activated. The differences between Shareware and fully registered/activated versions are listed near the bottom of each function page in the Online Demo / Manual and in the VAG-COM Function Chart.

2.3  Is Product Support included in the price?

Absolutely.  If you have a question or problem, please post it to the VAG-COM mailing list, mail it to us directly, or give us a call.   However, please understand that we don't know everything about every VW/Audi/SEAT/Skoda ever made.

2.4  Why can't I get VAG-COM to communicate at all?

Check the following:

• Is the adapter plugged into the car?   An Serial Interface that is not plugged into the car will always be "Not Found".  It gets power from the car!

• Is the car's ignition switch in the ON position?

• Is it plugged into the correct serial port?  Some PC's have the ports mis-labeled.

• Are the serial ports on your PC properly configured?

• Disable Palm HotSync or Microsoft ActiveSync software!

• If you have a 1997 or newer car with an aftermarket radio or if you have used your ISO-COM Interface on a car with an aftermarket radio, read this page.

• Check our Issues page for any special configuration settings that may be necessary for your vehicle

•  If you are using a power supply for a laptop, it should be one specifically designed for that purpose, NOT a "universal" adapter..

Note: If you test the COM port, but an hourglass appears, you may have an IRQ conflict. This may not show up in Device Manager as a conflict. But, try this:

• Start>Run>MSINFO32.EXE to bring up the System Information utility.

• Go to Hardware Resources>IRQs This should show a list of all devices by their IRQ, so you can see if there are any repeated or shared IRQs.

If all else fails, feel free to call or email us, making sure to provide the brand and model of vehicle, brand and model of PC, and version of VAG-COM.

2.5  VAG-COM communicates, but it's "flaky".

The diagnostic protocols require a degree of real-time response from the diagnostic tool.  Certain other programs and services can prevent VAG-COM from responding in the timely fashion that the protocols require.   Some control modules are fussier about this than others.   Fixes:

Make sure you are using the latest version of VAG-COM. If you have any other programs running, close them.  If you have any of the following active on your computer, turn them off:

• Virus Scanners

• Task Scheduler

• Microsoft Active-Synch

• Fast-Find 

• Some Novell Netware network drivers

• Canon "Multipass" multi-function printer/scanner software

• Power Management -- some laptops are notoriously difficult, try running the laptop on AC power!

• Logitech QuickCam - the service in Task Manager is named "lvprcsrv.exe".

Other Tips:

• Go through all the stuff in your System Tray:
  
  Right-Click on each little icon.  If there's a "Disable" or "Exit" option, do it!

• Windows 2000 with SP1:  Install IE 5.5 or SP2.

• Windows 95/98/Me:  Pull up a task list by pressing CTRL-ALT-DEL.   Kill everything except Explorer and Systray.   

• All versions of Windows:  Start -> Run -> MSCONFIG.  Take a look at what other non-essential stuff Windows is loading and disable it. 

• STOP or remove PCMCIA Cards, especially anything made by Xircom.  Some IBM  brand cards are also problematic.

• Try turning Off your COM Port's FIFO buffers.   Open the properties sheet for the COM Port in Device Manager.   Select the Port Settings tab.  Click the Advanced button.   Uncheck the "use FIFO buffer" checkbox.

• Some Windows installations, especially ones that have had numerous program installed and uninstalled over the years may be hopeless.  Try installing a clean copy of Windows in a different folder than the original.  

• If you have an older, slower PC running Windows XP, try setting the Display Properties>Appearance to Windows Classic Style instead of Windows XP Style.

• If you are using a USB Interface, go to Device Manager, USB Root Hub, Properties, Power Management, and uncheck "Allow Windows to turn off this device to save power"

• If your PC has multiple Serial or USB ports, try using a different port.

• If you have the Window Size on the Options screen in VAG-COM set to to any value other that 10 (the default) try changing it back to 10 then Test, Save, and exit out of VAG-COM.

• If you are using Vista, make sure to have "USB selective suspend setting" under "Power Options" set to "Disabled" as shown here.

• If your PC has a Shock Sensor (like certain Lenovo laptops, i.e  X61), it may shut down your hard drive under hard acceleration. You may want to disable that function in the system tray.

If all else fails, feel free to call or email us, making sure to provide the brand and model of vehicle, brand and model of PC, and version of VAG-COM.

2.6  Why does my dash BEEP when I access my ABS controller?

In many vehicles, there will be a series of BEEPs from the dash when you access the ABS controller (and the ABS light will be ON while you are talking to it).  This perfectly normal and is done to notify the driver that the ABS is non-functional while in diagnostic mode.  

2.7  Are there any Fault-Codes that can and should be ignored?

Yes.  Most 1995 and earlier Bosch ECU's will show you a DTC 00513 - Engine Speed Sensor (G28) if you scan them when the engine is not running.   This fault code goes away by itself once you start the engine.   If this sensor were truly defective, the engine would not run at all!   Please ignore this code.  

In addition, many Automatic Transmission Control Modules will show a DTC 00526 or 17087 that indicates a faulty brake light switch.   This can also be ignored and will not appear if you press the brakes once before checking for Fault Codes.

2.8  Are there any known Bugs / Problems / Issues?

Please check the Revision History Page and Issues Page.

2.9  What's the Work Shop Code?

Every VW/Audi dealer in the world is assigned a unique Work Shop Code.  A brand-new factory VAG-1551/1552 or VAS-5051/5052 scan tool will not function until a WSC is entered, and once it has been entered, it cannot be changed.   Whenever a Control Module is Re-Coded, or certain Adaptations are performed, the scan tool sends its WSC to the control module and the control module records it for posterity.   Thus, if a scan-tool is used to do something like disable certain airbags, in principle, it should be possible to tell who (which dealer) did that.    Like the factory scan-tools, VAG-COM will accept a WSC once on the Options Screen.  If you enter a WSC there, it will be sent to the control modules exactly like it's supposed to be.   If you leave the WSC on the Options Screen at it's default of 00000, VAG-COM will operate in "stealth mode".  Instead of sending a fixed WSC, it will put back whatever was already in the control module, with one exception:  If it finds the "telltale" WSC (30011) that VWTool/VDS-PRO likes to leave behind, VAG-COM will replace it with something more innocuous.

2.10  What's with the DEBUG files?

VAG-COM uses these to record a lot of the data being exchanged between the car and your PC.  Having these can be very useful if there is some sort of unexpected problem communicating with a controller in your car.  By default, the Debug Level is set to 0.   If you're having a problem, we may ask you to set the Debug level to something other than zero, and to send us a specific Debug file.  The best way to send Debug files is to ZIP them first. Contact Ross-Tech if you need assistance doing this.

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